Ignition-lock for automobiles.



& A. A. AYLING.

IGNITION LOCK FOR AUTOMOBILES. `APPLHrATmN man Nov. I3. 191'?.

1,287,604, Patented B60411913.

l ignuentozs '@HWf/MJWW vor e Illoz ne u cally described bile by` its A own Y se'mbled WELLMllg/SXLTNG AND ALFRED A. AYLING, OF DETROIT, MICHG-AN.

reunion-:toon ron aurorroninns.

.igaeveoa Specification of Letters Patent.

Application lfiled November 13, 1917. Serial No. 201,75@

To all whom z't'may concern Be it known that we, WILLIAM AYLING and ALFRED A.. AYLING,

troit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in ignition-Locks for Automobiles, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to an ignition lock for automobiles, and has special reference toa locking mechanism, including a'n electric switch actuated thereby, that will prevent persons from surreptitiously using an automobile, thieves from stealing. the machine, or any person operating the automoignition system of the same.

The primary object of our invention is to provide an ignition lock including an electric switch, a slide bar for operating the switch,` and a permutation lock for controlling the operation of the slide bar, said slide bar being also employed for locking a casing about `the mechanism,- so that the mechanism cannot be tampered with or an4 electmc circuit completed within the casing independently of the switch.

,JA further object of our invention is to provide an ignition lock consisting of comparatively few parts that are compactly asand adapted to b e installed on the inner side of an automobile dash or suitable support, so that the lock will be con venient to the operator of an automobile and at the same time` occupy a position that will not interfere with parts of the ignition system or power plant of the automobile.

Our invention will be hereinafter speciliand then claimed, and ref erence will now be had to the drawing wherein-d r v Figure 1 is a vertical sectional View of the ignition lock, and

.Fig 2 is a longitudinal sectional view of the casing showing a rear elevation of the locking mechanism.

In the drawing, denotes a portion of an automobile dash or a suitable support and in order that our ignition lockt may be installed thereon it is necessary that the dashbe provided with two openings 2 and 3. The opening 2 aep citizens of the 'United States of America, residing at Deface of the power plant and the usual .and supported by the the reference numeral 1 commodates an apertured hollow .boss 4 carried by an angle bracket 5 .secured to the inner face of the dash 1 by a serew 6 or other fastening means. The angle bracket 5 has a bearing 7.for the 'spindle or shaft 8 of a conventional fornif of permutation lock 9,` said shaft or spindle extending through the opening 3 of the dash, 1 so that the permutation lock 9 may be mounted against the outer dash and conveniently operated by the chauffeur of an automobile.

The inner end of the shaft or spindle 8 has the usual tumbler disks 10 and connected to the angle bracket fastening means is a against said angle with the screws `11 12 are studs through slots 14 in a slide bar 15, said bar being supported by the studs 13 and normally engaged by a` compression spring carried by one end of the housing 12. slide bar 15 4has a depending lug 17 and connected thereto is a grayity dog 18 adapted to engage in notches 19 of the turnbler disks 10, providing all of said notches aline to receive the gravity dog. y Suitably connected to the slide bar 15 is a post 20 extending through a slot 21 provided therefor in the housing 12. Loosely connected to the post 20 and suitably insulated therefrom is the upper end of a switch arm 22 pivoted on an insulated support 23 carried by the housing 12. The 'lower end of the switch arm 22 is adapted to engage blades or contact members 24 insulated from housing 1 2 Lead in wires 25 and 26 are connected to the switch arm 22 and the contacts 24 respectively, said lead in wires forming part of the ignition system of an automobile so that the switch may' make and break the ignition circuit and thereby control the operation of the power plant of the automobile. The upper edge of the slide bar 15'is provided -with latch members 27 adapted to c ngage in keepers 28 carried by a bar 29su1tably connected, as at 30, to a casingl having' an open bottom adapted to be seatedon the angle bracket 5 and inclose the housing 12 and the switch. The housing 12 is slotted vto receive the keepers 28 and with the latch members 27 engaging with the keepers 28 it is practically impossible to remove the housing 12 that is held bracket. Cooperating iri holding .the housing Patented nee. it, reis.

13 and these studs extend` 5, by screws 11 or other 6 75 The` casing 3i, consequently the switch cannot be tampered with. i n n the apertured boss 4 or the ans-ie bracket 5 is a spi-Inn pressed plunger 3:2 and ltlns plunger is adapted to engage in a recess or socket 33 provided therefor in the slide bar 15.

To operate the ignition lock, it is necessary that the permutation lock be manipulated in the usual and well known manner according to certain combinations, whereby the tumbler disks l0 are successively brought into position to place all of the notches or slots 19 in alinement in order that gravity dog 1&8 may enter the notches or slots of the tumbler disks. It is then possible to rotate the tumbler disks comiterclockwise, in reference to Fig. 2 of the drawing, so that the tumbler disks shift the slide bar 15 through the medium of the gravity dog` i8. As the slide bar l5 shifted against the action of the spring' .16, the 'switch arm 522 is swung to a closed position completing the ignition circuit, and the spring pressed plun- Vger engages in the recess and holds the slide bar 1 5 in its adjusted position.

In shifting the slide bar l5, 'the casingi` has been unlocked, but said casing will l remain 1n engagement with the angle the switch and lock meclninism.

y adjust-ing the permutation lock, and pulling outwardly upon the spring' pressed plunger' 32, the slide bar l5 may be released and actuated by the spring 16 to break the ignition circuit and lock the casing 31 on the angle bracket 5, such operation taking place when the chau'eur or owner power plant.

Itis thought that the operation and utility of the ignition lock will be apparent without furt 1er description, and while in the rawing there is illustrated a preferred emet 5, unless it is desired to examine insinua as fall within the scope of the appended claims.

iii hat 'we claim is i. in an ignition lock for an automobile, the combination of an angle bracket. adapted Jfor attachment to the dash ot' an antonio` biie,'a housing carried by said bracket and having one side thereof open and adapted to be closed by said bracket, a permutation lock extending' into said housing, 4a slide bar in said housing' shiftablc in one direction y said permutation lock, a spring' in said housing engaging1 said slide bar, a switch on said housingoperatable b i movement oi' Said lock, and a casing having its bottom open and adapted to be closed by said bracket to inclose said housingand switch, said casing' being' locked on said bracket by said slide Y n an ignition lock for an automobile, the combination of an angle bracket, a housing carried thereby. a permutation lock having' tumbler disks in said housing', a spring.)A pressed slide bar vin said housing' above said lock, a, dogcarried by the lower edge of said slide bar adapted to engage the tumbler disks of said permutation lock and be shifted thereby to slide said bar, a switch arm pi votally connected to the outer side of said housing, means connecting one end of said arm to said bar so that the opposite end oi. said switch arm may be shifted bv a reciprocable movement of said bar, a detachable casing'on said bracket inclosingsaid housing' and switch arm, depending' keepers carried buv the top ot said casing and extending into said housing, and latch members carried by the top of said slide bar adapted to engage said said casing' on said bracket.

ln testimony tures in presence of two witnesses.

VVLLAM AYLNG. ALFRED A. AYLING. liVitnesses:

KARL H. BUTLER, ANNA M. Donn.

` rcciprocable keepers and lock'` 'whereof we affix our signa- 

